That app on their web site is just too much fun. And there is no additional cost for doing your own design.
I am pretty sure number 2 will be my choice. It appears to be the most support for a pillion. Those of you that have this and ride 2 up I would really like to know the opinion of those riding with you.
And no reference to my wife's back side or I will have to sign her up on here. LOL